<!DOCTYPE html>
<html lang="zh-CN">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <style>
      /* 通配选择器*大于继承选择器p */
      * {
        color: red;
      }
      p {
        color: green;
      }
    </style>
  </head>
  <body>
    <p><span>继承</span></p>
    <!-- //最终是红色的 -->
  </body>
</html>
